JPH049099B2 - - Google Patents
Info
- Publication number
- JPH049099B2 JPH049099B2 JP27122385A JP27122385A JPH049099B2 JP H049099 B2 JPH049099 B2 JP H049099B2 JP 27122385 A JP27122385 A JP 27122385A JP 27122385 A JP27122385 A JP 27122385A JP H049099 B2 JPH049099 B2 JP H049099B2
- Authority
- JP
- Japan
- Prior art keywords
- mill
- mill body
- grinding
- grinding medium
- arc discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000227 grinding Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 11
- 238000010891 electric arc Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000000395 magnesium oxide Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000005539 carbonized material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は振動ボールミル、とりわけ窯業原料や
研摩剤の原料に用いるマグネシア（MgO）、アル
ミナ（Al2O3）、ジルコニア（ZrO2）、炭化ケイ素
（SiC）等を粉砕するに適した振動ボールミルに
関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention is a vibratory ball mill, especially for manufacturing magnesia (MgO), alumina (Al 2 O 3 ), zirconia (ZrO 2 ), and carbonized materials used as ceramic raw materials and abrasive raw materials. This relates to a vibrating ball mill suitable for grinding silicon (SiC), etc.
（従来の技術）
窯業原料や研摩研削剤の原料となるマグネシ
ア、アルミナ等の粉体製品は高アルミナ質原料や
マグネシア原料を予め電気炉で熔融し、結晶を大
きく発達させて電融アルミナや電融マグネシアを
生成し、しかる後にこれを適度の粒度に粉砕して
各種の用途に供されている。(Conventional technology) Powder products such as magnesia and alumina, which are raw materials for ceramics and abrasives, are produced by melting high-alumina raw materials and magnesia raw materials in an electric furnace in advance to develop large crystals, and then producing powder products such as fused alumina and alumina. Molten magnesia is produced, which is then pulverized to an appropriate particle size and used for various purposes.
すなわち上述したアルミナ、マグネシア、炭化
ケイ素、ジルコニア等の粉末製品の製造には当然
のことながら電気炉と粉砕機を使い、熔融工程と
粉砕工程を別々に行なうことが常識であつた。そ
のため生産性を低くコスト高となるのはやむを得
ないことと考えられていた。 That is, in the production of powdered products such as alumina, magnesia, silicon carbide, zirconia, etc., it has been common sense to use an electric furnace and a pulverizer, and to carry out the melting process and the pulverizing process separately. Therefore, it was considered unavoidable that productivity would be low and costs would be high.
（発明の目的、構成）
本発明は上記問題点に鑑み、粉砕機能だけでな
く熔融機能をも併せ持ち熔融工程と粉砕工程を同
時に実施できる、従来存在しなかつた粉砕機を提
供することを目的とする。(Purpose and Structure of the Invention) In view of the above-mentioned problems, an object of the present invention is to provide a pulverizer that has not only a pulverizing function but also a melting function and can carry out a melting process and a pulverizing process at the same time, which has not existed in the past. do.
従来より粉砕機には種々の形式、構造のものが
提案されているが、上記目的を達成するため本発
明者は特に振動ボールミルに着目した。すなわち
上記目的に沿う本発明の構成は粉砕すべき原料と
粉砕媒体をミル本体に装填し、該ミル本体をスプ
リングで支持するとともに、モータにより回転駆
動されるシヤフトに偏心加振源を取り付け、該偏
心加振源の回転によりミル本体を振動させ、粉砕
媒体に運動を与えて粉砕を行う振動ボールミルに
おいて、
前記粉砕媒体を導電性材料でつくるとともにミ
ル本体内部にアーク放電を発生させるための電極
を配設したことを要旨とする。 Conventionally, various types and structures of crushers have been proposed, but in order to achieve the above object, the present inventors particularly focused on a vibrating ball mill. That is, the configuration of the present invention in accordance with the above object is to load the raw material to be crushed and the crushing medium into a mill body, support the mill body with a spring, and attach an eccentric vibration source to a shaft rotationally driven by a motor. In a vibrating ball mill in which the mill body is vibrated by the rotation of an eccentric vibration source to give motion to the grinding medium for pulverization, the grinding medium is made of a conductive material and an electrode is provided inside the mill body to generate an arc discharge. The gist is that it has been arranged.
（作用）
本発明によれば、ミル本体に振動を加えて、粉
砕媒体を跳躍させると電源と導電性粉砕媒体及び
導電性粉砕媒体同士の間で衝突、反発が繰り返さ
れる。そこで、電極間に高電圧を印加すると電極
と導電性粉砕媒体間でアーク放電が発生し、アー
ク熱によりアーク放電の電路中にある原料が瞬時
に熔融する。同時に粉砕媒体同士の衝突及び粉砕
媒体とミル周壁の衝突によりこれら両者の間にあ
る原料が粉砕される。(Function) According to the present invention, when vibration is applied to the mill body to cause the grinding medium to jump, collisions and repulsions are repeated between the power source, the conductive grinding medium, and the conductive grinding media themselves. Therefore, when a high voltage is applied between the electrodes, arc discharge occurs between the electrodes and the conductive grinding medium, and the raw material in the arc discharge path is instantly melted by the arc heat. At the same time, the raw material between the grinding media and the mill peripheral wall is pulverized due to collisions between the grinding media and the mill peripheral wall.
（実施例） 以下に本発明の一実施例を詳述する。(Example) An embodiment of the present invention will be described in detail below.
図は本実施例の一部破断正面図である。図中、
１および２は円筒形のミル本体であり、フレーム
３により両者が一体に振動するように連結してあ
る。またミル本体１と２の間には通路（図示せ
ず）が設けてあり、粉砕すべき原料はミル１で粉
砕した後ミル２に移送され、ここでさらに微粉砕
される。フレーム３にはモータ（図示せず）によ
り回転駆動されるシヤフト４が回転自在に軸架し
てあり、このシヤフト４に偏心重錘５が加振源と
して取り付けてある。またフレーム３の左右に突
設したアーム６，７と機台８，９の間にスプリン
グ１０，１１が介装してある。 The figure is a partially cutaway front view of this embodiment. In the diagram,
1 and 2 are cylindrical mill bodies, which are connected by a frame 3 so that they vibrate together. A passage (not shown) is provided between the mill bodies 1 and 2, and the raw material to be ground is ground in the mill 1 and then transferred to the mill 2, where it is further pulverized. A shaft 4 rotatably mounted on the frame 3 is rotatably driven by a motor (not shown), and an eccentric weight 5 is attached to the shaft 4 as an excitation source. Further, springs 10 and 11 are interposed between the arms 6 and 7 protruding from the left and right sides of the frame 3 and the machine stands 8 and 9.
前記ミル本体１の内部にはその中心部に電極１
２を配設するとともにミル本体のケーシング１３
の内側に電極１４を取り付ける。両電極間には発
電機、変圧機等よりなる電源部１５から高電圧が
印加される。また粉砕媒体としてチルド鋳鉄やモ
リブデン合金鋼など導電性の金属性ボール１６を
装入しておく。 Inside the mill body 1, there is an electrode 1 at its center.
2 and the casing 13 of the mill body.
The electrode 14 is attached to the inside of the . A high voltage is applied between both electrodes from a power supply section 15 consisting of a generator, a transformer, etc. Further, conductive metal balls 16 such as chilled cast iron or molybdenum alloy steel are charged as a grinding medium.
本実施例は以上の構成よりなり、モータを起動
してシヤフト４を駆動し偏心重錘５を回転させる
とミル本体１，２が加振されてミル内の金属性ボ
ール１６が跳躍し始め、金属性ボール１６が電極
１２，１４と衝突、反発を繰り返すとともにボー
ル１６同士も衝突、反発を繰り返す。そこで電極
１２，１４間に電源部１５から高電圧を印加する
と両電極間とその間に散在する金属性ボールとの
間でアーク放電が発生する。とくに金属性ボール
１６と電極１２，１４及びボール同士間の衝突、
反発はミル１内の至るところで頻繁に繰り返され
るので安定したアーク放電が得られるとともに刻
一刻とその発生箇所を変えてアーク放電が発生す
る。アーク放電が発生すると放電路上にある原料
はアーク熱により瞬時に熔融して電融アルミナや
電融マグネシア等が生成する。同時に生成した電
融物質はボール１６同士の衝突及びボールとミル
内壁との衝突により粉砕される。 The present embodiment has the above-described configuration, and when the motor is started to drive the shaft 4 and rotate the eccentric weight 5, the mill bodies 1 and 2 are excited and the metal balls 16 in the mill begin to jump. The metal balls 16 repeatedly collide with and repel the electrodes 12 and 14, and the balls 16 also repeatedly collide and repel each other. Therefore, when a high voltage is applied from the power supply unit 15 between the electrodes 12 and 14, arc discharge occurs between the two electrodes and the metal balls scattered therebetween. In particular, collisions between the metal ball 16 and the electrodes 12, 14 and between the balls,
Since the repulsion is frequently repeated throughout the mill 1, a stable arc discharge can be obtained, and the arc discharge is generated by changing its generation point every moment. When arc discharge occurs, the raw materials on the discharge path are instantly melted by arc heat, producing fused alumina, fused magnesia, and the like. The simultaneously generated molten material is pulverized by collisions between the balls 16 and collisions between the balls and the inner wall of the mill.
（発明の効果）
本発明によれば、各種粉砕機のうちとくに振動
ボールミルに着目し、これに熔融機能を付加する
ことにより電融アルミナや電融マグネシア等の電
融物質を生成するための熔融工程とその後に行う
粉砕工程が一台の装置で同時に実施できるので、
工程が簡略化されて生産コストを低減できるうえ
に製品の品質が均一になるという顕著な効果を奏
する。(Effects of the Invention) According to the present invention, by focusing on a vibrating ball mill among various types of pulverizers, and adding a melting function to the vibrating ball mill, it is possible to produce a molten substance such as fused alumina or fused magnesia. Since the process and the subsequent crushing process can be performed simultaneously with one device,
This has the remarkable effect of simplifying the process, reducing production costs, and making the quality of the product uniform.
図面は本発明の実施例を示す一部破断正面図で
ある。
１……ミル本体、４……シヤフト、５……偏心
加振源、１０，１１……スプリング、１２，１４
……電極、１５……電源部、１６……導電性粉砕
媒体。
The drawing is a partially cutaway front view showing an embodiment of the present invention. 1... Mill body, 4... Shaft, 5... Eccentric vibration source, 10, 11... Spring, 12, 14
...electrode, 15...power supply section, 16...conductive grinding medium.
Claims (1)
し、ミル本体をスプリングで支持するとともに、
モータにより回転駆動されるシヤフトに偏心加振
源を取り付け、該偏心加振源の回転によりミル本
体を振動させ、粉砕媒体に運動を与えて粉砕を行
う振動ボールミルにおいて、 前記粉砕媒体を導電性材料でつくるとともに、
ミル本体内部にアーク放電を発生させるための電
極を配設したことを特徴とする前記振動ボールミ
ル。[Claims] 1. Loading the raw material to be crushed and a crushing medium into a mill body, supporting the mill body with a spring, and
A vibrating ball mill in which an eccentric vibration source is attached to a shaft rotationally driven by a motor, and the mill body is vibrated by the rotation of the eccentric vibration source to give motion to a grinding medium to perform grinding, and the grinding medium is made of a conductive material. In addition to making it with
The vibratory ball mill described above is characterized in that an electrode for generating arc discharge is provided inside the mill body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27122385A JPS62132555A (en) | 1985-12-02 | 1985-12-02 | Vibration ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27122385A JPS62132555A (en) | 1985-12-02 | 1985-12-02 | Vibration ball mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62132555A JPS62132555A (en) | 1987-06-15 |
| JPH049099B2 true JPH049099B2 (en) | 1992-02-19 |
Family
ID=17497064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27122385A Granted JPS62132555A (en) | 1985-12-02 | 1985-12-02 | Vibration ball mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62132555A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006150160A (en) * | 2004-11-25 | 2006-06-15 | Hosokawa Funtai Gijutsu Kenkyusho:Kk | Powder film forming apparatus |
-
1985
- 1985-12-02 JP JP27122385A patent/JPS62132555A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62132555A (en) | 1987-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |